First found in 2010 the system and it red dwarf was the first system outside the sol system to hold planets suitable for life. The entire system is composed of 6 planets and of star Called Gliese 581 A. The system is over 4.3 billions years old and it used by the UNSC for multiple purpose from military reserch to exo-biological reserch. Spared by the Covenant during the war it remaned a vital system for the UNSC war effort. The entire system hold a sizable population of 909,100,000 human called Gliesians.